ninja mr21-b01a
 

just bought this motor off an old racer and was wonmdering what plug to use for it? also what pipes evone is using on these i have a jp-4 and a grp pipe any suggestions on pipe or plug will help thanks and i am running 30% wreks fuel

I have been using the NINJA 6 or the O'Donnell 97t with good success, for a pipe, I use the Ninja FLS 2053 which I believe will be real similar to the GRP.

I have a falcon which is very similar to a ninja. I originally ran a p3 then once I had a gallon through it I went to a os p4. Try a p4 plug you will love it.

I have used P3, 97t, and ninja 6 in mine. It really just depends on what you want out of the motor. I like mine with a smooth bottom end so I tend to stick with the 6 or 97t. Now for pipes I have to 2053 fls. It is a good all round pipe for many tracks, but for the tracks I run on I prefer the 053 pipe. It really brings this motor to life in the mid range. It is a great little pipe for the smaller tracks that I run on.

I only run the GRP/Ninja #6 plugs in mine. I have over 12 gallons (No Joke, and not exagerating..) on mine, and it's still screaming fast (if any of the Revrace crowd reads this, I'm sure they'll chime in to verify how fast it is).

I run my Ninja in a Hyper ST truggy with the Ofna PCR 2027 pipe. I actually like the 2027 better than the 053 FLS pipe...I only run the Byrons Gen 2 Pro blend in it as well. Great combo, IMO...

Hope this helps...

Have Fun...Burn Nitro...